Re: Rotary table DRO

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "babinda01" <a_k@a...> wrote:

>
> Hello,
>
> I was wondering if someone may be able to help me with a problem

I

> have at the moment.
> I am trying to add a DRO to my 'little' rotary table. It is 6

meter

> diameter. I am looking to get .05mm accuracy if at all possible.

I

> was thinking of puting a rotary encoder onto the main spindle which
> is coupled directly to the table, but to get the resolution I am
> looking for I need approx 400 000 pulses per rev (0.00095 deg).

All

> the encoders I have looked at seem to be about 8000 pulses per rev

in

> quad. Is it possible to gear an encoder up? If so how (so as to

get

> minimal backlash)?
>
> Thanks for your help
> Andrew

Look at: http://www.bwelectronics.co.uk/

They have a dro application for a rotary table and it is transferable
to other equipment

Regards,

Andrew Mawson,
Bromley, Kent, UK